You can sure argue that there are no more areas of exploration.
Of course we haven't mined the Antarctic or the ocean floors or space.
We haven't yet worked off alchemy, lol. Seriously, I think it likely we can change one metal to another through atomic bombardment or what ever. Let's call it enriched silver!
And of course if we never had silver, would society and progress have ceased? We would have found other ways for industrial production of goods now using silver.
Yep its shiny and bright and makes pretty things, but there are other pretty things to use.
But of course silver will be valued for a long time and new highs are likely in the long run.
